#include "bsp_rgb.h"

RGB_T rgb;


void RGB_Init(void)
{
	GPIO_InitTypeDef GPIO_InitStructure;
	TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
	TIM_OCInitTypeDef  TIM_OCInitStructure;
	
	RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);	//使能定时器3时钟
 	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA  | RCC_APB2Periph_GPIOB  | RCC_APB2Periph_AFIO, ENABLE);  //使能GPIO外设和AFIO复用功能模块时钟
	
	//GPIO_PinRemapConfig(GPIO_FullRemap_TIM3, ENABLE); 
	
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init( GPIOA, &GPIO_InitStructure );
 
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init( GPIOB, &GPIO_InitStructure );
	
   //初始化TIM3
	TIM_TimeBaseStructure.TIM_Period = TIMER3_PERIOD; //设置在下一个更新事件装入活动的自动重装载寄存器周期的值
	TIM_TimeBaseStructure.TIM_Prescaler =TIMER3_PRESCALER; //设置用来作为TIMx时钟频率除数的预分频值 
	TIM_TimeBaseStructure.TIM_ClockDivision = 0; //设置时钟分割:TDTS = Tck_tim
	TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;  //TIM向上计数模式
	TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); //根据TIM_TimeBaseInitStruct中指定的参数初始化TIMx的时间基数单位
	
	//初始化TIM3 Channel2 PWM模式	 
	TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; //选择定时器模式:TIM脉冲宽度调制模式2
	TIM_OCInitStructure.TIM_Pulse = TIMER3_PULSE;
 	TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //比较输出使能
	TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; //输出极性:TIM输出比较极性高

	TIM_OC1Init(TIM3, &TIM_OCInitStructure);  
	TIM_OC1PreloadConfig(TIM3, TIM_OCPreload_Enable);
	
	TIM_OC2Init(TIM3, &TIM_OCInitStructure);  
	TIM_OC2PreloadConfig(TIM3, TIM_OCPreload_Enable);  
	
	TIM_OC3Init(TIM3, &TIM_OCInitStructure);  
	TIM_OC3PreloadConfig(TIM3, TIM_OCPreload_Enable);  

	TIM_Cmd(TIM3, ENABLE);  //使能TIM3
}


/**************************************************** 
	设置RGB灯颜色
	r,g,b：分别表示红、绿、蓝，每个值设置范围0~255
****************************************************/
void RGB_SetColor(uint8_t r,uint8_t g,uint8_t b)
{
	TIM_SetCompare1(TIM3, b); 
	TIM_SetCompare2(TIM3, r); 
	TIM_SetCompare3(TIM3, g); 
}




